Question

.

Answer 1

solve it and see!

Answer 2

what they really want you to do is compute
\[b^2-4ac=4^2-4\times 2\times 3\]

Answer 3

since that number is evidently negative, that means you have
D. two complex roots

Answer 4

yes

Answer 5

i honestly never in my life understood this terminology "stretching by a factor of..."
really i don't, but C looks as good as any